Insole



FIG. 1 is a top plan view of an insole showing my new design;

FIG. 2 is a left side elevational thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a back elevational view thereof;

FIG. 7 is a cross-sectional view thereof taken along line 7--7 in FIG. 1. 

The ornamental design for an insole, as shown and described. 